i just got my max evrything seems fine but when i brought the car home
i tested the horn and it worked about 3-4 times but it was weak then it just stopped. then i got a #10 circuit and it did the same thing workd a few times n it blew out what should i do?

and also wat is the last button on the key chain?

 

Faulty horn fuse??

The button below the "unlock"? That is the panic button. Hold for 2-3 seconds and panic alarm with activate.